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Finding the Fourth Proportional to 2,106.36, 3,159.18 and 567

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Solution

The fourth proportional to 2,106.36, 3,159.18 and 567 is: 850.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.36 : 3,159.18 = 567 : x
  2. Step 2: Convert to fraction form
    2,106.36/3,159.18 = 567/x
  3. Step 3: Cross multiply
    2,106.36x = 3,159.18 × 567
  4. Step 4: Simplify right side
    2,106.36x = 1,791,255.06
  5. Step 5: Solve for x
    x = 1,791,255.06/2,106.36
  6. Step 6: Final answer
    x = 850.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.